UPDATE: Four injured in Ditchling collision
A 16-year-old boy, also from Surrey, arrested on suspicion of theft of a car following the same incident, has been released on bail until 9 May while police enquiries continue.
Four people were taken to the Royal Sussex County Hospital, Brighton, for treatment to injuries, none of which were assessed as life-threatening.
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Hide AdAs a result of the collision at 1.17pm the road was closed for several hours and police have thanked motorists for their patience and understanding while the scene was examined and cleared and the road made safe.
Anyone who saw what happened is asked to call Sussex Police on 101 or email [email protected], quoting Operation Anglesey.